How to Shade Oceans in Houdini & Redshift

this video will demonstrate how to shade oceans and set up the material for both the ocean water and foam how the ocean floor geometry is generated is covered in a previous video and this video will mainly focus on only the shading ocean floor and setting up the material a link for the previous video will be posted in the description so if you want to recreate these two ocean effects on the screen feel free to check out the that video for the ocean floor I created a material for it so let's go there now this is a very simple material in fact it's still locked I basically just dropped you know a redshift material change the preset to water and I believe I changed the color as well I changed the overall tint color and I played around with some of these values until I got the look I liked then I linked it to the ocean floor in order for it to look like this so this is what it looks this is what the ocean floor looks like with that material which isn't bad there is something you need to be aware of when generating a wooden rendering for water so I'm just gonna turn off the foam for now and in the dome I'm gonna turn this off so I'm not going to use this don't like I want to use a default don't light to show you what it looks like just default rendering no it doesn't render very well with just the dome light when you're rendering water you need really good lighting you need high contrast lighting so let's delete this let's go back to the original one I had turn this back on you can go to HDR I Haven comm and they provide a lot of free HDR eyes for you to use they also have a very convenient high contrast search filter so you can search for a high contrast light there after you load in a chart you can rotate it to find the best lighting condition so by rotating it just a bit I get more reflection here which may or may not look that you want you also need to be aware when rendering water there it might be a good idea to have something underneath so all this is is just a grid on the bottom and this grid has a material this material is just block so this is what it looks like without the ocean bottom when you put it in you'll start to see the reflections and the and the color of the ocean that's because this ocean floor this material here which is the redshift preset water material has sorry has a lot of translucency and to really illustrate that I'm gonna take I turned off the ocean for I rendered out the ocean floor without the bottom and I'm gonna load it up in Photoshop you can see the alpha Channel and it it's very translucent so this is the ocean floor this is this being rendered out without the floor so we didn't render the floor out I had the render flag turned off this which is this so you can actually it's equivalent to adding a background you in order to render the phone go to your riches top what are the particles and check this this will make the particles render out larger or smaller the default value is one which was really big for me I like the small particle foam now for the ocean floor there's a little bit more to this material as mentioned before the ocean floor node will generate the foam particles along with attributes that you can use the age the life the P scale now I used the P skill isn't very useful in this case because it's I didn't randomize the size much I use the life point attribute so wish you can access that by only two points and dropping this down and then putting life just type in the name of the attribute right here then you want to fit this life because the life attribute values range from 1.2 to 0.2 but you need it from 0 to 1/4 for coloring purposes now I'm just gonna show you just out of the box the life value and feed it into the surface to see how it looks like which is pretty decent but it wasn't the fact that I was looking for because I wanted the one the particles that are about to die out to blend more with the water so let's put that back up so that's why I do have a math range to fit the life values to a zero to one range then I can use this ramp more appropriately so the ones that are near the zero zero life so they're about to die all right they're almost sorry the zero life they're almost being born to blend with the water and then it gets as it lives longer it gets more brighter white and I take this color ramp and I feed it into the translucent color and the reflection color now you just want to see the foam for debugging purposes or maybe you just want to do a quick render you can just drop down a color like a white color probably but foam is white and just plug it into the surface that'll give you pretty good results as well but it won't give you that reflection you can see that we've lost the reflection so that's all I did to set up the foam material this video mainly focused on ocean shading and materials for rendering if you want to see how I generated the ocean geometry used for shading that's covered in a different video but it's a very basic overview on how I use Houdini's ocean nodes and it's meant for beginners a link for that video will be posted in the description and the video will be titled how to generate oceans energy Dini for beginners

Channel: bubblepins

Views: 14,478

Keywords: houdini, redshift, ocean materials, rendering, 3d computer graphics, 3d ocean, sidefx, oceans, houdini oceans, houdini tutorial, houdini beginner, houdini ocean tutorial, houdni ocean waves, houdini ocean wave tutorial, houdini ocean spectrum, houdini ocean surface, houdini ocean redshift, houdini water, houdini water simulation, houdini water tutorial, houdini ocean masterclass, houdini ocean simulation, houdini ocean render, houdini realistic ocean

Id: zp4LDlIo1gU

Length: 10min 18sec (618 seconds)

Published: Wed Jul 03 2019